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Cr/SiO2 catalysts are important industrial ethylene polymerization catalysts, mainly including Phillips catalyst (also called oxo chromium/SiO2) and silyl chromate/SiO2 systems (named as SC/SiO2, also called UCC S‐2 catalyst). Compared with Phillips catalyst, SC/SiO2 catalyst is not fully investigated. In this work, SC/SiO2 catalyst was prepared, and triethylaluminum or triisobutylaluminium was used...
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